add discord links to readme

Author: Novakasa

README.md

@@ -26,10 +26,12 @@ Since the project relies on Bluetooth for communication between PC and all hubs,
 
 ## Current state
 
-Users have reported succesfully automating their layouts, but each setup is a bit different. If you are willing to give Brickrail a go, feel free to share your issues over in [discussions](https://github.com/Novakasa/brickrail/discussions). Reports of success are also greatly appreciated, as well as any usability/quality-of-life improvement requests.
+Users have reported succesfully automating their layouts, but each setup is a bit different. If you are willing to give Brickrail a go, feel free to share your issues over in [discussions](https://github.com/Novakasa/brickrail/discussions) or in the [discord server](https://discord.gg/MUBGCz3W56). Reports of success are also greatly appreciated, as well as any usability/quality-of-life improvement requests.
 
 ## Links
 
+[Discord server](https://discord.gg/MUBGCz3W56)
+
 [Here](https://www.youtube.com/watch?v=cBF-G4d4vw8)'s a video of Brickrail in action with a multi-layered layout.
 
 Head to the [Wiki](https://github.com/Novakasa/brickrail/wiki) to learn more about how to run Brickrail with your LEGO train layout.